Eur J Appl Physiol (1990) 61:48-54
Applied Physiology European Journal of
and Occupational Physiology @ Springer-Verlag 1990
A systems model of training responses and its relationship to hormonal responses in elite weight-lifters T. Busso a, K. H~ikkinen 2, A. Pakarinen a, C. Carasso 4, J. R. Lacour a, P. V. Komi 2, and H. Kauhanen 2 1 Laboratoire de Physiologie-GIP Exercice, Universit~ de Saint-Etienne, F-42000 Saint-Etienne, France
z Department of Biologyof Physical Activity,University of Jyvaskyla,SF-40100 Jyvaskyla,Finland 3 Department of Clinical Chemistry,University of Oulu, SF-90220 Oulu, Finland 4 Equipe d'Analyse Numbrique-UA CNRS 04740, Universit6 de Saint-Etienne, F-42000 Saint-Etienne, France Accepted November 11, 1989
Summary. A systems model, providing an estimation of fatigue and fitness levels was applied to a 1-year training period of six elite weight-lifters. The model parameters were individually determined by fitting the predicted performance (calculated as the difference between fitness and fatigue) to the actual one. The purpose of this study was to validate the systems model by comparing the estimated levels of fatigue and fitness with biological parameters external to the model calculation. The predicted and the actual performances were significantly correlated in each subject. The calculated fitness and fatigue levels were related to serum testosterone concentration, testosterone:cortisol and testosterone:sex hormone binding globulin ratios. The best results were obtained by the comparison between fitness and testosterone levels, which varied in parallel in each subject. In two subjects this correlation was significant (r=0.91, P
Applied Physiology European Journal of
and Occupational Physiology @ Springer-Verlag 1990
A systems model of training responses and its relationship to hormonal responses in elite weight-lifters T. Busso a, K. H~ikkinen 2, A. Pakarinen a, C. Carasso 4, J. R. Lacour a, P. V. Komi 2, and H. Kauhanen 2 1 Laboratoire de Physiologie-GIP Exercice, Universit~ de Saint-Etienne, F-42000 Saint-Etienne, France
z Department of Biologyof Physical Activity,University of Jyvaskyla,SF-40100 Jyvaskyla,Finland 3 Department of Clinical Chemistry,University of Oulu, SF-90220 Oulu, Finland 4 Equipe d'Analyse Numbrique-UA CNRS 04740, Universit6 de Saint-Etienne, F-42000 Saint-Etienne, France Accepted November 11, 1989
Summary. A systems model, providing an estimation of fatigue and fitness levels was applied to a 1-year training period of six elite weight-lifters. The model parameters were individually determined by fitting the predicted performance (calculated as the difference between fitness and fatigue) to the actual one. The purpose of this study was to validate the systems model by comparing the estimated levels of fatigue and fitness with biological parameters external to the model calculation. The predicted and the actual performances were significantly correlated in each subject. The calculated fitness and fatigue levels were related to serum testosterone concentration, testosterone:cortisol and testosterone:sex hormone binding globulin ratios. The best results were obtained by the comparison between fitness and testosterone levels, which varied in parallel in each subject. In two subjects this correlation was significant (r=0.91, P
